As mentioned, Klipsch speakers are not noted for a neutral/warm sound, if Music is your preference. For DD movies, your existing speakers will work fine. Your existing speakers maybe considered on the shouty side, by many. Many people do like Klipsch bookshelf speakers. Your current AVR is 5.1 and the only upgrade would be to a 7.1 channel unit, primarily. It is all in the speakers you buy, for the tonal sound that is pleasing to your ears, plus, what your budget will afford.